searching for john henry knopp in pa

my name is amanda loncar. my madian name is amanda knopp. my fathers name is john henry knopp. i have not seen or heard from my father since i was 3. i am now 22 and have a daughter name breanna caitlyn loncar. my mothers name is darlene kay knopp and i have 3 sisters. heather and heidi knopp and stephanie knopp. heather and hiedi are now 21 and stephanie is now 24 with a son named justin clerance white. i would like to know at least if he is still alive and if anyone has heard of him. last i was told he was living in johnstown,pa. that was a long time ago though. please if you have any info post or email me at amandak26@yahoo.com.